Datasheet

DS12167 Rev 4 67/94
STM8L050J3 Electrical parameters
87
8.3.5 Memory characteristics
T
A
= -40 to 125 °C unless otherwise specified.
Flash memory
Table 32. RAM and hardware registers
Symbol Parameter Conditions Min Typ Max Unit
V
RM
Data retention mode
(1)
1. Minimum supply voltage without losing data stored in RAM (in Halt mode or under Reset) or in hardware
registers (only in Halt mode). Guaranteed by characterization.
Halt mode (or Reset) 1.8 - - V
Table 33. Flash program and data EEPROM memory
Symbol Parameter Conditions Min Typ
Max
(1)
Unit
V
DD
Operating voltage
(all modes, read/write/erase)
f
SYSCLK
= 16 MHz 1.8 - 3.6 V
t
prog
Programming time for 1 or 64 bytes (block)
erase/write cycles (on programmed byte)
--6-ms
Programming time for 1 to 64 bytes (block)
write cycles (on erased byte)
--3-ms
I
prog
Programming/ erasing consumption
T
A
=+25 °C, V
DD
= 3.0 V -
0.7
-
mA
T
A
=+25 °C, V
DD
= 1.8 V - -
t
RET
(2)
Data retention (program memory) after 100
erase/write cycles at T
A
= –40 to +85 °C
T
RET
= +85 °C 30
(1)
--
years
Data retention (program memory) after 1000
erase/write cycles at T
A
= –40 to +125 °C
T
RET
= +125 °C 5
(1)
--
Data retention (data memory) after 100000
erase/write cycles at T
A
= –40 to +85 °C
T
RET
= +85 °C 30
(1)
--
Data retention (data memory) after 300000
erase/write cycles at T
A
= –40 to +125 °C
T
RET
= +125 °C 5
(1)
-- -
N
RW
(3)
Erase/write cycles (program memory)
T
A
= –40 to +85 °C
100
(1)
- - cycles
Erase/write cycles (data memory)
100
(1)
(4)
- - kcycles
1. Guaranteed by characterization results.
2. Conforming to JEDEC JESD22a117
3. The physical granularity of the memory is 4 bytes, so cycling is performed on 4 bytes even when a write/erase operation
addresses a single byte.
4. Data based on characterization performed on the whole data memory.
Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.